Evaporation

You cause the water in the air surrounding you to superheat, scalding those around you. Each creature within range, other than you,  must make a Constitution saving throw. On a failed save, the target takes 1d4 fire damage, and it has disadvantage on opportunity attacks against you until the start of its next turn.

The spell’s damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).